One month ago, Verizon Wireless’s CFO hinted in an interview that the company might follow AT&T’s lead and replace unlimited data plans with tiered ones. Now Engadget is reporting that the switch might come on July 29th. Because this is just a rumor so far, there’s no word yet on whether Verizon will offer the same 200 MB / 2 GB split as AT&T or whether it will grandfather in existing unlimited customers. [More]